CVE-2021-23968 — Information Exposure via Error Message in Mozilla Firefox
Severity
4.3MEDIUMNVD
EPSS
0.3%
top 49.69%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 26
Latest updateMay 24
Description
If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NExploitability: 2.8 | Impact: 1.4
Affected Packages8 packages
Also affects: Debian Linux 10.0, 9.0
🔴Vulnerability Details
4GHSA▶
GHSA-94jc-v9rf-w32j: If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as o↗2022-05-24
OSV▶
CVE-2021-23968: If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as o↗2021-02-26
CVEList▶
CVE-2021-23968: If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as o↗2021-02-26